Networking Basics
This device connects different networks together and is commonly used as the default gateway.
What is a router?
This service translates domain names into IP addresses.
What is DNS?
This Windows tool is commonly used to view running applications, performance, and startup apps.
What is Task Manager?
This macOS feature is used to create backups and restore previous versions of files.
What is Time Machine?
This component performs most calculations and executes instructions in a computer.
What is the CPU?
This security principle means users should only have the access needed to perform their job.
What is least privilege?
This device connects computers within the same local network and commonly uses MAC addresses to forward traffic.
What is a switch?
This service automatically provides IP addresses, subnet masks, gateways, and DNS servers to client devices.
What is DHCP?
This Windows tool is used to view system, application, and security logs.
What is Event Viewer?
This Linux command lists files and folders in the current directory.
What is ls?
This type of storage has no moving parts and is generally faster than a hard disk drive.
What is an SSD?
This Windows feature encrypts a storage volume to protect data if a device is lost or stolen.
What is BitLocker?
This part of an IP configuration tells the computer which router to use when sending traffic outside the local network.
What is the default gateway?
A computer has an address beginning with 169.254. This usually means this service failed.
What is DHCP?
This Windows tool is used to create partitions, format volumes, and assign drive letters.
What is Disk Management?
This macOS feature encrypts the drive, similar to BitLocker on Windows.
What is FileVault?
This component helps preserve BIOS or UEFI settings when the computer is powered off.
What is the CMOS battery?
A fake email asking a user to click a link and reset their password is this type of attack
What is phishing?
This protocol maps an IPv4 address to a MAC address on the local network.
What is ARP?
A user can ping 8.8.8.8, but cannot open websites by name. This is the most likely problem.
What is a DNS problem?
This Windows startup mode loads minimal drivers and services to help troubleshoot problems.
What is Safe Mode?
This cloud model gives users access to software through a browser, such as Microsoft 365 or Canvas.
What is SaaS, or Software as a Service?
A monitor looks blurry and stretched after being replaced. This setting is most likely incorrect.
What is the screen resolution or native resolution?
This is the first step in the CompTIA troubleshooting process.
What is identify the problem?
A computer has the IP address 192.168.10.25 and subnet mask 255.255.255.0. What part most likely identifies the network?
What is 192.168.10.0?
This Windows command is used to test name resolution by querying DNS records.
What is nslookup?
A user says their computer is connected to Wi-Fi, but they cannot access the internet. Their IP address is 169.254.44.18. What is the most likely issue?
What is DHCP failure?
This type of hypervisor runs directly on the hardware instead of running inside another operating system.
What is a Type 1 hypervisor?
This display technology can produce very deep blacks because individual pixels can turn off completely
What is OLED?
After implementing a solution, this troubleshooting step confirms that the problem is fixed and that preventive measures are applied.
What is verify full system functionality and implement preventive measures?